By Arathy Somasekhar HOUSTON (Reuters) -Oil prices ended nearly 1% lower on Tuesday, reversing earlier gains as U.S. consumer prices unexpectedly rose in August, giving cover for the U.S. Federal Reserve to deliver another hefty interest rate increase next week. Brent crude for November delivery settled 83 cents lower at $93.17 a barrel with a 0.9% loss, after trading between $95.53 and $91.05. U.S. October crude futures closed down 47 cents, or 0.5%, at $87.31, after touching a high of $89.31 and low of $85.06. The consumer price index gained 0.1% last month after being unchanged in July, the…